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3rd September 2013, 06:46 AM
#1
Updated list of Sealants and Thread lockers
NOTE: This is the current list of sealant recommendations from Land Rover's Topix website (accessed May 2013). This information supersedes the sealants recommended in the CD version of RAVE.
Sealants
The following table lists those sealants which are used during repair/overhaul procedures covered in this manual; it is essential that the sealant specified for a particular procedure is used at all times.

Td5 Engine
Timing chain fixed guide Allen screw - STC 50552
Camshaft cover gasket joint line - STC 50550
Oil pick-up strainer Torx screws - STC 50552
Oil pump drive sprocket retaining bolt - STC 50552
Timing chain cover, crankshaft rear oil seal and sump gasket joint lines - STC 50550
Oil pressure relief valve plug - STC 50552
Camshaft carrier to cylinder head - STC 4600
Timing cover - STC 50550
Cylinder block core plugs - STC 50552
Clutch/torque converter housing to cylinder block - Upper 4 bolts - STC 50552
Fuel cooler to inlet manifold bolts - Upper - STC 50552
V8 Engine
Sump gasket to cylinder block - STC 50550
Clutch/torque converter housing to cylinder block - Upper 4 bolts - STC 50552
'V' grooves at end of cylinder head - Inlet manifold gasket - STC 50550
Cruciform seal ends - STC 50550
Dipstick tube - STC 50554
Timing cover bolts - STC 50552
Engine Management System - V8
Engine coolant temperature (ECT) sensor threads - STC 50552
Manifolds and Exhaust System - V8
'V' grooves at end of cylinder head - Inlet manifold gasket - STC 50550
Manual Gearbox - R380
Gear selector housing - STC 50550
Selector housing bolts - STC 50552
Input shaft oil seal housing - STC 50550
Input shaft oil seal housing bolts - STC 50552
Reverse inhibitor shaft threads - STC 50552
Gate plate bolts - STC 50552
Gear case to extension housing - STC 4404
Extension housing bolts - STC 50552
Gear change lever yoke Allen screw - STC 50552
Gear case to centre plate - STC 4404
Detent plugs - STC 50552
Bias spring adjustment plate bolts - STC 50552
Transfer Box - LT230SE
Bottom cover plate - STC 4600
Bottom cover plate bolts - STC 50552
Front output housing core plug - STC 3811
Transfer box to gear case bolts - Petrol and Diesel engines - STC 50552
Transfer box to gear case studs - Petrol and Diesel engines - STC 50552
Rear cover - STC 4600
Differential warning lamp switch(es) - STC 50552
High/Low selector warning lamp switch - STC 50552
Rear output shaft housing - STC 4600
Rear output shaft housing bolts - STC 50552
High/Low selector fork set screw - STC 50552
Interlock solenoid selector cover - Up to 03 MY - STC 4600
Interlock solenoid circlip - 03 MY onwards - STC 50551
Neutral sensor - STC 50552
Intermediate shaft retaining plate bolt - STC 50552
Side cover - STC 4600
Side cover bolts - STC 50552
Differential lock selector shaft detent plug - STC 50552
Differential lock selector housing bolts - STC 50552
Front output shaft housing - STC 4600
Front output shaft housing bolts - STC 50552
High/Low selector shaft detent plug - STC 50552
Input gear bearing housing - STC 4600
Rear cover stud nut and bolt - STC 50552
High/Low cross shaft housing - STC 4600
High/Low cross shaft housing bolts - STC 50552
Rear Axle and Final Drive
Differential cover to casing - STC 3811
Differential cover to casing bolts - STC 50552
Differential cover to casing - STC 3811
Front axle
Differential cover to casing bolts - STC 50552
Front suspension
Drive shaft to hub - STC 50554
Rear suspension
Drive shaft to hub - STC 50554
Rear suspension
SLS air compressor bolts - STC 50552
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3rd September 2013, 06:50 AM
#2
Part Number references for sealants
As far as I've been able to ascertain this is the cross reference from LR Part Numbers to commercial products.
STC50550 : Loctite 5900
STC50551 : Terostat 8586
STC50552 : Loctite 243
STC50554 : Loctite 648
STC3811 : Hylomar 101 (Amine curing RTV silicone sealant - engineering grade)
STC4404 : Hylomar 607 (Oxime curing RTV silicone sealant adhesive)
STC4600 : Hylomar 3400
In some cases it is cheaper and easier to source the LR part.
Loctite 5900 is only available in 300g tubes at $75+ ex gst from Repco etc. The LR STC50550 is a 90g syringe type applicator that sells for under $30 via LR Australia.
The most reasonably priced sources for STC4600 // Hylomar 3400 I've found are the UK parts specialists. Even so it is around £38.00-£42.00 for a 300g tube.
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